diff options
Diffstat (limited to 'intern/cycles/kernel/kernel_film.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_film.h | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/intern/cycles/kernel/kernel_film.h b/intern/cycles/kernel/kernel_film.h index 0bbd6c202a1..f6351a73295 100644 --- a/intern/cycles/kernel/kernel_film.h +++ b/intern/cycles/kernel/kernel_film.h @@ -20,21 +20,17 @@ CCL_NAMESPACE_BEGIN __device float4 film_map(KernelGlobals *kg, float4 irradiance, int pass) { - float scale = kernel_data.film.exposure*(1.0f/(pass+1)); + float scale = 1.0f/(float)(pass+1); + float exposure = kernel_data.film.exposure; float4 result = irradiance*scale; - if(kernel_data.film.use_response_curve) { - /* camera response curve */ - result.x = kernel_tex_interp(__response_curve_R, result.x); - result.y = kernel_tex_interp(__response_curve_G, result.y); - result.z = kernel_tex_interp(__response_curve_B, result.z); - } - else { - /* conversion to srgb */ - result.x = color_scene_linear_to_srgb(result.x); - result.y = color_scene_linear_to_srgb(result.y); - result.z = color_scene_linear_to_srgb(result.z); - } + /* conversion to srgb */ + result.x = color_scene_linear_to_srgb(result.x*exposure); + result.y = color_scene_linear_to_srgb(result.y*exposure); + result.z = color_scene_linear_to_srgb(result.z*exposure); + + /* clamp since alpha might be > 1.0 due to russian roulette */ + result.w = clamp(result.w, 0.0f, 1.0f); return result; } @@ -47,7 +43,7 @@ __device uchar4 film_float_to_byte(float4 color) result.x = (uchar)clamp(color.x*255.0f, 0.0f, 255.0f); result.y = (uchar)clamp(color.y*255.0f, 0.0f, 255.0f); result.z = (uchar)clamp(color.z*255.0f, 0.0f, 255.0f); - result.w = 255; + result.w = (uchar)clamp(color.w*255.0f, 0.0f, 255.0f); return result; } |