API Reference > imodeljs-frontend > Rendering > Uniform Uniform Interface Represents a uniform variable in a shader program used by a custom screen-space effect, providing methods for setting the current value of the uniform. see UniformParams.bind to provide the value of the variable. see ScreenSpaceEffectBuilder.addUniform to add a uniform variable to an effect shader. Methods Name Description setUniform1f(value: number): void Sets the value to a float - equivalent to WebGLRenderingContext.uniform1f. setUniform1fv(value: number[] | Float32Array): void Sets the value to an array of floats - equivalent to WebGLRenderingContext.uniform1fv. setUniform1i(value: number): void Sets the value to an integer - equivalent to WebGLRenderingContext.uniform1i. setUniform1iv(value: number[] | Int32Array): void Sets the value to an array of integers - equivalent to WebGLRenderingContext.uniform1iv. setUniform2fv(value: number[] | Float32Array): void Sets the value as a vec2, equivalent to WebGLRenderingContext.uniform2fv. setUniform3fv(value: number[] | Float32Array): void Sets the value as a vec3 - equivalent to WebGLRenderingContext.uniform3fv. setUniform4fv(value: number[] | Float32Array): void Sets the value as a vec4 - equivalent to WebGLRenderingContext.uniform4fv. Defined in core/frontend/src/render/ScreenSpaceEffectBuilder.ts Line 51 Last Updated: 29 November, 2022