8386270904
Batch #1624 by eAthena: 0 byte-identical, 1 confirmed by peer review. - fn_02107 RenderProjection::Project: logic confirmed by peer review Reviewed-by: ragnarok-clanker
40 lines
1.9 KiB
C++
40 lines
1.9 KiB
C++
#include "Render/Primitives/LightmappedPrimitive.h"
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#include "Render/Primitives/RenderPrimitive.h"
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#include "Render/Projection/RenderProjection.h"
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#include <bit>
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// OFFSET: 0x0055D650
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// FUNCTION: fn_02106
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void RenderProjection::Project(const float* position, const float* matrix, RenderVertex& output) const {
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const float inverseDepth = 1.0f / (((matrix[5] * position[1] + matrix[2] * position[0]) + matrix[8] * position[2]) + matrix[11]);
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output.rhw = inverseDepth;
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// STATIC: 0x010DD22C
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// GLOBAL: gl_13420
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constexpr float depthScale = 1.0067114f;
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const float depth = ((1.0f / inverseDepth - 10.0f) * depthScale) * inverseDepth;
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const float x = ((((matrix[3] * position[1] + position[0] * matrix[0]) + matrix[6] * position[2]) + matrix[9]) * inverseDepth) * this->scaleX;
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output.x = x + static_cast<float>(this->centerX);
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const float centerY = static_cast<float>(this->centerY);
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const float y = ((((matrix[4] * position[1] + matrix[1] * position[0]) + matrix[7] * position[2]) + matrix[10]) * inverseDepth) * this->scaleY;
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output.z = depth;
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output.y = y + centerY;
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}
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// OFFSET: 0x0055D750
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// FUNCTION: fn_02107
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void RenderProjection::Project(const float* position, const float* matrix, LightmappedVertex& output) const {
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const float inverseDepth = 1.0f / (((matrix[5] * position[1] + matrix[2] * position[0]) + matrix[8] * position[2]) + matrix[11]);
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output.rhw = inverseDepth;
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const float depth = ((1.0f / inverseDepth - 10.0f) * 1.0067114f) * inverseDepth;
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const float x = ((((matrix[3] * position[1] + position[0] * matrix[0]) + matrix[6] * position[2]) + matrix[9]) * inverseDepth) * this->scaleX;
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output.x = x + static_cast<float>(this->centerX);
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const float centerY = static_cast<float>(this->centerY);
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const float y = ((((matrix[4] * position[1] + matrix[1] * position[0]) + matrix[7] * position[2]) + matrix[10]) * inverseDepth) * this->scaleY;
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output.z = depth;
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output.y = y + centerY;
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}
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