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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// RHI version, note the explicit binding (1)
#if QSSG_REDUCE_MAX_NUM_LIGHTS
#define MAX_NUM_LIGHTS 5
#else
#define MAX_NUM_LIGHTS 15
#endif
#define MAX_NUM_SHADOWS 8
struct LightSource
{
vec4 position;
vec4 direction; // Specifies the light direction in world coordinates.
vec4 diffuse;
vec4 specular;
float coneAngle; // Specifies the intensity distribution of the light.
float innerConeAngle; // Specifies the maximum spread angle of the light.
float constantAttenuation; // Specifies the constant light attenuation factor.
float linearAttenuation; // Specifies the linear light attenuation factor.
float quadraticAttenuation; // Specifies the quadratic light attenuation factor.
};
struct ShadowData {
mat4 matrices[4];
vec4 dimensionsInverted[4]; // (x, y, z, 0)
vec4 csmSplits;
vec4 csmActive;
float bias;
float factor;
float isYUp; // 1.0 = true, 0.0 = false
float clipNear; // Used for Point light + Spot light
float shadowMapFar; // Used for Point light + Spot light
int layerIndex;
int csmNumSplits;
float csmBlendRatio;
float pcfFactor;
};
layout (std140, binding = 1) uniform cbLights
{
int uNumLights;
LightSource lights[MAX_NUM_LIGHTS];
} ubLights;
layout (std140, binding = 2) uniform cbShadows
{
int uNumShadows;
ShadowData shadowData[MAX_NUM_SHADOWS];
} ubShadows;
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