clamp to quad
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zomseffen
parent
5bd181adc9
commit
1a30887a7d
7 changed files with 62 additions and 22 deletions
shaders
src
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@ -4,6 +4,8 @@ layout(location = 0) in vec2 fragRasterPos;
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layout(location = 1) flat in uint fragVolumeStart;
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layout(location = 2) in vec3 origPosition;
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layout(location = 3) flat in uint facing;
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layout(location = 4) flat in uvec2 minRasterPos;
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layout(location = 5) flat in uvec2 maxRasterPos;
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layout(location = 0) out vec4 outColor;
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@ -468,15 +470,21 @@ vec3 clamp_to_volume(uint volume_start, vec3 position) {
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return vec3(min(max(position.x, low_x_border), high_x_border), min(max(position.y, low_y_border), high_y_border), min(max(position.z, low_z_border), high_z_border));
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}
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vec3 add_reflection(vec3 view_vector, uint f, uint volume_start, vec3 pos, uvec4 color_sample, vec3 color_sum) {
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vec3 orig_color_sample = vec3(float(color_sample.x) / 255.0, float(color_sample.y) / 255.0, float(color_sample.z) / 255.0);
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vec2 clamp_to_quad(vec2 raster_pos, uvec2 min_raster_pos, uvec2 max_raster_pos) {
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return vec2(max(min_raster_pos.x, min(max_raster_pos.x - 1, raster_pos.x)), max(min_raster_pos.y, min(max_raster_pos.y - 1, raster_pos.y)));
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}
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vec3 reflection_direction = reflect_vector(view_vector, f);
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Tracing reflection_tracing = trace_ray(volume_start, pos, reflection_direction, pos_infinity, 0, max_iterations_per_light, true);
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vec3 add_reflection(vec3 view_vector, uint f, uint volume_start, vec3 pos, uvec4 color_sample, vec3 color_sum) {
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float reflectivity = 1.0 - float(color_sample.w) / 255.0;
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if (reflection_tracing.has_hit || reflection_tracing.has_transparent_hit) {
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vec3 color_from_reflection = diffuse_tracing(reflection_tracing.end_volume, reflection_tracing.end_raster, reflection_tracing.end_pos, reflection_tracing.end_facing) * orig_color_sample;
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color_sum = color_sum * (1.0 - reflectivity) + color_from_reflection * reflectivity;
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if (reflectivity > 0.01) {
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vec3 orig_color_sample = vec3(float(color_sample.x) / 255.0, float(color_sample.y) / 255.0, float(color_sample.z) / 255.0);
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vec3 reflection_direction = reflect_vector(view_vector, f);
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Tracing reflection_tracing = trace_ray(volume_start, pos, reflection_direction, pos_infinity, 0, max_iterations_per_light, true);
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if (reflection_tracing.has_hit || reflection_tracing.has_transparent_hit) {
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vec3 color_from_reflection = diffuse_tracing(reflection_tracing.end_volume, reflection_tracing.end_raster, reflection_tracing.end_pos, reflection_tracing.end_facing) * orig_color_sample;
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color_sum = color_sum * (1.0 - reflectivity) + color_from_reflection * reflectivity;
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}
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}
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return color_sum;
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@ -484,13 +492,14 @@ vec3 add_reflection(vec3 view_vector, uint f, uint volume_start, vec3 pos, uvec4
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void main() {
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vec3 clamped_pos = clamp_to_volume(fragVolumeStart, origPosition);
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uvec4 color_roughness = sample_color_from_scene_info(fragVolumeStart, fragRasterPos, facing);
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vec2 clamped_raster_pos = clamp_to_quad(fragRasterPos, minRasterPos, maxRasterPos);
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uvec4 color_roughness = sample_color_from_scene_info(fragVolumeStart, clamped_raster_pos, facing);
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vec3 orig_color_sample = vec3(float(color_roughness.x) / 255.0, float(color_roughness.y) / 255.0, float(color_roughness.z) / 255.0);
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vec3 color_sum;
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uint orig_neighbor = sample_neighbor_from_scene_info(fragVolumeStart, fragRasterPos, facing);
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uint orig_neighbor = sample_neighbor_from_scene_info(fragVolumeStart, clamped_raster_pos, facing);
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if (orig_neighbor != 0) {
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vec3 color_direct = diffuse_tracing(fragVolumeStart, fragRasterPos, clamped_pos, facing);
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vec3 color_direct = diffuse_tracing(fragVolumeStart, clamped_raster_pos, clamped_pos, facing);
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color_direct = add_reflection(normalize(clamped_pos - ubo.camera_pos), facing, fragVolumeStart, clamped_pos, color_roughness, color_direct);
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Tracing t = trace_ray(fragVolumeStart, ubo.camera_pos, clamped_pos - ubo.camera_pos, pos_infinity, 0, max_iterations_per_light, false);
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@ -507,11 +516,10 @@ void main() {
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}
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}
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else {
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color_sum = diffuse_tracing(fragVolumeStart, fragRasterPos, clamped_pos, facing);
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color_sum = diffuse_tracing(fragVolumeStart, clamped_raster_pos, clamped_pos, facing);
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color_sum = add_reflection(normalize(clamped_pos - ubo.camera_pos), facing, fragVolumeStart, clamped_pos, color_roughness, color_sum);
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}
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outColor = vec4(color_sum, 1.0);
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//outColor = vec4(orig_color_sample, 1.0);
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}
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@ -14,12 +14,17 @@ layout(location = 0) in vec3 inPosition;
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layout(location = 1) in uvec2 inRasterPos;
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layout(location = 2) in uint inVolumeStart;
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layout(location = 3) in uint inFacing;
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layout(location = 4) in uvec2 inMinRasterPos;
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layout(location = 5) in uvec2 inMaxRasterPos;
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layout(location = 0) out vec2 rasterPos;
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layout(location = 1) flat out uint volumeStart;
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layout(location = 2) out vec3 origPosition;
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layout(location = 3) flat out uint facing;
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layout(location = 4) flat out uvec2 minRasterPos;
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layout(location = 5) flat out uvec2 maxRasterPos;
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void main() {
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if (ubo.use_geom_shader[0]) {
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gl_Position = ubo.geom_rot * ubo.model * vec4(inPosition, 1.0);
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@ -30,4 +35,7 @@ void main() {
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volumeStart = inVolumeStart;
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origPosition = inPosition;
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facing = inFacing;
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minRasterPos = inMinRasterPos;
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maxRasterPos = inMaxRasterPos;
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}
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@ -24,28 +24,36 @@ impl Drawable for Quad {
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vec3(self.pos1.x as f32, self.pos1.y as f32, self.pos1.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 0, y: 0}),
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self.volume_index,
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self.facing
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 1 top right far
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos2.x as f32, self.pos2.y as f32, self.pos2.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 0, y: 1}),
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self.volume_index,
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self.facing
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 2 top left near
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos3.x as f32, self.pos3.y as f32, self.pos3.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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self.volume_index,
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self.facing
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// 3 top right near
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scene.rt_vertices.push(vertex::RTVertex::new(
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vec3(self.pos4.x as f32, self.pos4.y as f32, self.pos4.z as f32),
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 0}),
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self.volume_index,
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self.facing
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self.facing,
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self.raster_pos,
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self.raster_pos + self.size.mul_element_wise(cgmath::Vector2 {x: 1, y: 1}),
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));
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// change node order while preserving texture coordinates
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@ -215,5 +215,5 @@ pub fn generate_test_scene2(scene: &mut Scene, data: &mut AppData, chunk_num_x:
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scene.directional_lights.push(Rc::new(RefCell::new(DirectionalLight { direction: vec3(0.0, 0.0, -1.0), color: vec3(0.1, 0.1, 0.1), memory_start: 0 })));
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scene.oct_trees = oct_trees;
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Ok(cgmath::point3((max_x as f32 / 2.0) as f32, (max_y as f32 / 2.0) as f32, height_map[(max_x as f32 / 2.0).floor() as usize][(max_y as f32 / 2.0).floor() as usize] + 2.0))
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Ok(cgmath::point3((max_x as f32 / 2.0) as f32, (max_y as f32 / 2.0) as f32, height_map[(max_x as f32 / 2.0).floor() as usize][(max_y as f32 / 2.0).floor() as usize] + 2000.0))
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}
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@ -181,14 +181,16 @@ pub struct RTVertex {
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pub raster_pos: cgmath::Vector2<u32>,
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pub volume_start: u32,
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facing: Facing,
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min_raster_pos: cgmath::Vector2<u32>,
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max_raster_pos: cgmath::Vector2<u32>,
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}
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impl RTVertex {
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pub const fn new(pos: Vec3, raster_pos: cgmath::Vector2<u32>, volume_start: u32, facing: Facing) -> Self {
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Self { pos, raster_pos, volume_start, facing }
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pub const fn new(pos: Vec3, raster_pos: cgmath::Vector2<u32>, volume_start: u32, facing: Facing, min_raster_pos: cgmath::Vector2<u32>, max_raster_pos: cgmath::Vector2<u32>) -> Self {
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Self { pos, raster_pos, volume_start, facing, min_raster_pos, max_raster_pos }
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}
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}
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impl VertexContainer<4> for RTVertex {
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impl VertexContainer<6> for RTVertex {
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fn binding_description() -> vk::VertexInputBindingDescription {
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vk::VertexInputBindingDescription::builder()
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.binding(0)
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@ -197,7 +199,7 @@ impl VertexContainer<4> for RTVertex {
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.build()
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}
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fn attribute_descriptions() -> [vk::VertexInputAttributeDescription; 4] {
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fn attribute_descriptions() -> [vk::VertexInputAttributeDescription; 6] {
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let pos = vk::VertexInputAttributeDescription::builder()
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.binding(0)
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.location(0)
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@ -226,7 +228,21 @@ impl VertexContainer<4> for RTVertex {
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.offset((size_of::<Vec3>() + size_of::<cgmath::Vector2<u32>>() + size_of::<u32>()) as u32)
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.build();
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[pos, raster_pos, volume_start, facing]
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let min_raster_pos = vk::VertexInputAttributeDescription::builder()
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.binding(0)
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.location(4)
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.format(vk::Format::R32G32_UINT)
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.offset((size_of::<Vec3>() + size_of::<cgmath::Vector2<u32>>() + size_of::<u32>() + size_of::<u32>()) as u32)
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.build();
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let max_raster_pos = vk::VertexInputAttributeDescription::builder()
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.binding(0)
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.location(5)
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.format(vk::Format::R32G32_UINT)
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.offset((size_of::<Vec3>() + size_of::<cgmath::Vector2<u32>>() + size_of::<u32>() + size_of::<u32>() + size_of::<cgmath::Vector2<u32>>()) as u32)
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.build();
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[pos, raster_pos, volume_start, facing, min_raster_pos, max_raster_pos]
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}
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}
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