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Fix: Zero division in Tone Map Photoreceptor node

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This commit is contained in:
Omar Emara
2024-12-02 13:45:35 +02:00
parent e5bdfd533b
commit 377d272f72
2 changed files with 3 additions and 2 deletions
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3
source/blender/compositor/realtime_compositor/shaders/compositor_tone_map_photoreceptor.glsl
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@@ -7,6 +7,7 @@
* physiology." IEEE transactions on visualization and computer graphics 11.1 (2005): 13-24. */
#include "gpu_shader_compositor_texture_utilities.glsl"
#include "gpu_shader_math_vector_lib.glsl"
void main()
{
@@ -21,7 +22,7 @@ void main()
/* Equation (1) from Reinhard's 2005 paper, assuming Vmax is 1. */
vec4 semi_saturation = pow(intensity * adaptation_level, vec4(contrast));
vec4 tone_mapped_color = input_color / (input_color + semi_saturation);
vec4 tone_mapped_color = safe_divide(input_color, input_color + semi_saturation);
imageStore(output_img, texel, vec4(tone_mapped_color.rgb, input_color.a));
}

2
source/blender/nodes/composite/nodes/node_composite_tonemap.cc
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@@ -284,7 +284,7 @@ class ToneMapOperation : public NodeOperation {
/* Equation (1) from Reinhard's 2005 paper, assuming `Vmax` is 1. */
float4 semi_saturation = math::pow(intensity * adaptation_level, contrast);
float4 tone_mapped_color = input_color / (input_color + semi_saturation);
float4 tone_mapped_color = math::safe_divide(input_color, input_color + semi_saturation);
output.store_pixel(texel, float4(tone_mapped_color.xyz(), input_color.w));
});