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LibGL+LibSoftGPU: Calculate spotlight cutoff angle as degrees

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We were storing the radians but never using that value in the GPU. We
now directly use the degrees value.
This commit is contained in:
Jelle Raaijmakers 2022-01-13 03:01:42 +01:00 • committed by Andreas Kling
parent 8c28d167c9
commit 9d4c2f6308
3 changed files with 1 additions and 6 deletions
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2
Userland/Libraries/LibSoftGPU/Device.cpp
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@ -698,7 +698,7 @@ void Device::draw_primitives(PrimitiveType primitive_type, FloatMatrix4x4 const&
if (light.spotlight_cutoff_angle != 180.0f) {
const auto spotlight_direction_normalized = light.spotlight_direction.normalized();
const auto light_to_vertex_dot_normalized_spotlight_direction = spotlight_direction_normalized.dot(FloatVector3(vertex_to_light.x(), vertex_to_light.y(), vertex_to_light.z()));
const auto cos_spotlight_cutoff = AK::cos<float>(light.spotlight_cutoff_angle);
const auto cos_spotlight_cutoff = AK::cos<float>(light.spotlight_cutoff_angle * AK::Pi<float> / 180.f);
if (light_to_vertex_dot_normalized_spotlight_direction >= cos_spotlight_cutoff)
spotlight_factor = AK::pow<float>(light_to_vertex_dot_normalized_spotlight_direction, light.spotlight_exponent);