diff options
Diffstat (limited to 'src/render.cu')
| -rw-r--r-- | src/render.cu | 51 |
1 files changed, 24 insertions, 27 deletions
diff --git a/src/render.cu b/src/render.cu index d9ce1b1..005950f 100644 --- a/src/render.cu +++ b/src/render.cu @@ -9,17 +9,17 @@ #include "stdio.h" __device__ float4 -get_color(const float3 &direction, const Triangle &triangle, unsigned int rgba) +get_color(const float3 &direction, const Triangle &t, unsigned int rgba) { - float3 v01 = triangle.v1 - triangle.v0; - float3 v12 = triangle.v2 - triangle.v1; + float3 v01 = t.v1 - t.v0; + float3 v12 = t.v2 - t.v1; float3 surface_normal = normalize(cross(v01,v12)); float cos_theta = dot(surface_normal,-direction); if (cos_theta < 0.0f) - cos_theta = dot(-surface_normal,-direction); + cos_theta = -cos_theta; unsigned int a0 = 0xff & (rgba >> 24); unsigned int r0 = 0xff & (rgba >> 16); @@ -35,7 +35,7 @@ extern "C" { __global__ void -render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, +render(int nthreads, float3 *_origin, float3 *_direction, Geometry *g, unsigned int alpha_depth, unsigned int *pixels, float *_dx, unsigned int *dxlen, float4 *_color) { @@ -50,8 +50,7 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, float distance; - if (n < 1 && !intersect_node(origin, direction, geometry, - geometry->start_node)) { + if (n < 1 && !intersect_node(origin, direction, g, g->start_node)) { pixels[id] = 0; return; } @@ -61,7 +60,7 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, unsigned int *head = &stack[0]; unsigned int *node = &stack[1]; unsigned int *tail = &stack[STACK_SIZE-1]; - *node = geometry->start_node; + *node = g->start_node; float *dx = _dx + id*alpha_depth; float4 *color_a = _color + id*alpha_depth; @@ -69,18 +68,18 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, unsigned int i; do { - unsigned int first_child = geometry->node_map[*node]; - unsigned int stop = geometry->node_map_end[*node]; + unsigned int first_child = g->node_map[*node]; + unsigned int stop = g->node_map_end[*node]; - while (*node >= geometry->first_node && stop == first_child+1) { + while (*node >= g->first_node && stop == first_child+1) { *node = first_child; - first_child = geometry->node_map[*node]; - stop = geometry->node_map_end[*node]; + first_child = g->node_map[*node]; + stop = g->node_map_end[*node]; } - if (*node >= geometry->first_node) { + if (*node >= g->first_node) { for (i=first_child; i < stop; i++) { - if (intersect_node(origin, direction, geometry, i)) { + if (intersect_node(origin, direction, g, i)) { *node = i; node++; } @@ -91,15 +90,14 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, else { // node is a leaf for (i=first_child; i < stop; i++) { - Triangle triangle = get_triangle(geometry, i); + Triangle t = get_triangle(g, i); - if (intersect_triangle(origin, direction, triangle, - distance)) { + if (intersect_triangle(origin, direction, t, distance)) { if (n < 1) { dx[0] = distance; - unsigned int rgba = geometry->colors[i]; - float4 color = get_color(direction, triangle, rgba); + unsigned int rgba = g->colors[i]; + float4 color = get_color(direction, t, rgba); color_a[0] = color; } @@ -109,9 +107,8 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, if (j <= alpha_depth-1) { insert(alpha_depth, dx, j, distance); - unsigned int rgba = geometry->colors[i]; - float4 color = get_color(direction, triangle, - rgba); + unsigned int rgba = g->colors[i]; + float4 color = get_color(direction, t, rgba); insert(alpha_depth, color_a, j, color); } @@ -155,11 +152,11 @@ render(int nthreads, float3 *_origin, float3 *_direction, Geometry *geometry, a = floorf(255*(1.0f-scale)); else a = 255; - unsigned int r = floorf(fr/(1.0f-scale)); - unsigned int g = floorf(fg/(1.0f-scale)); - unsigned int b = floorf(fb/(1.0f-scale)); + unsigned int red = floorf(fr/(1.0f-scale)); + unsigned int green = floorf(fg/(1.0f-scale)); + unsigned int blue = floorf(fb/(1.0f-scale)); - pixels[id] = a << 24 | r << 16 | g << 8 | b; + pixels[id] = a << 24 | red << 16 | green << 8 | blue; } } // extern "C" |